Photorefractive-index gratings formed by nanosecond optical pulses in BaTiO_3
- 1 October 1981
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 6 (10) , 475-477
- https://doi.org/10.1364/ol.6.000475
Abstract
We write and read a refractive-index grating in a photorefractive crystal BaTiO3 with a single 20-nsec laser pulse at 532 nm. The grating formed is erasable with similar pulses. Diffraction efficiency decreases exponentially with the cumulative erasing light energy for 20-nsec pulses at intensity levels of 5–30 MW/cm2. Optical energies required to write and erase gratings with 20-nsec pulses are about an order of magnitude larger than for millisecond-to-second-long pulses at 515 nm, even though the grating is still formed by a one-photon process.Keywords
This publication has 15 references indexed in Scilit:
- Real-time edge enhancement using the photorefractive effectOptics Letters, 1980
- Real-time image processing via four-wave mixing in a photorefractive mediumApplied Physics Letters, 1980
- Photorefractive effects and light-induced charge migration in barium titanateJournal of Applied Physics, 1980
- Degenarate four-wave mixing in LiNbO3 and LiTaO3Optics Communications, 1980
- Phase-conjugate wavefront generation via real-time holography in Bi_12SiO_20 crystalsOptics Letters, 1979
- Real-time coherent object edge reconstruction with Bi_12SiO_20 crystalsApplied Optics, 1978
- High-sensitivity read-write volume holographic storage in Bi12SiO20 and Bi12GeO20 crystalsApplied Physics Letters, 1976
- Pulsed Writing of Solid State HologramsApplied Optics, 1973
- Optically Induced Refractive Index Changes in BaTiO3Journal of Applied Physics, 1970
- HOLOGRAPHIC STORAGE IN LITHIUM NIOBATEApplied Physics Letters, 1968